[general_re]

Momentum, indeed. Sounds like someone could use a physics refresher.

Let's assume he fell 30 meters, or just shy of 100 feet. Given that d = 0.5 * g * t², neglecting air resistance, we see that 30 = 0.5 * 9.8 m/s² * t². Solving for t, we see that the time t before impact was about 2.5 seconds, give or take. The final, "impact" velocity, then, given by the equation v_f = g * t, must have been 9.8 m/s² * 2.5, or 24.5 m/s, more or less, or about 55 miles per hour.

[savedbygrace]

Therefore, though not technically correct, in this case you could say that 55mph was his terminal velocity.

[AxelPaulsenJr]

or about 55 miles per hour.

Well at least he wasn't speeding.

[Constitution Day]

...24.5 m/s, more or less, or about 55 miles per hour.

Well done.
It's not the falling, it's that sudden stopping, you know.

[Criminal Number 18F]

11 Stories is a lot more than 30 metres -- I make it to be about double that, 60m/200 ft. He'd have been closing in on a tumbling person's terminal velocity of 35-40 m/sec -- an unsurvivable impact (about 60-70 kilojoules), absent highly unusual circumstances in the deceleration.

d.o.l.

Criminal Number 18F